Is there a knot with exactly two crossings?

The simplest knot that can be tied is the overhand knot. It consists of a turn of the standing end to make a loop, and then a pass of the standing end through the loop. The result is a stopper knot...
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Seven pedestrian crossings?

How many usa&canada border crossings are there?

According to the U.S. Department of Homeland Security, there are 35 border crossing stations between Canada and the United States. The 3,987-mile border that separates Canada from the lower 48 stat...
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Who must stop at railroad crossings?

Vehicles that must stop at railroad crossings include any bus carrying passengers, any school bus, any vehicle carrying explosive substances, and any crawler-type tractor or any vehicle that goes 1...
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